Hoop-forming machine.



Patented Apr'. 29, I902.

N. E. BROWN;

HOOP FORMING MACHINE.

Application filed Dec. 18v 1900.)

2 Sheets-Sheet I.

(No Model.)

N0. 698 442 Patented Apr. 29, I902.

HOOP FORMING MACHINE.

Application h I N. E. BROWN.

led Dec. 18. I QOOJ No Model.)

2-Sheeis- Sheet 2.

IL MMQJLI nn I um v .I Y

immanent UbIlTED STATES PATENT OFFICE.

NORMAN E. BROWN, OF ST. JOSEPH, MICHIGAN.

HOOP-FORMING MACHINE.

srnorrrcn'rron forming part of Letters Patent No. 698,442, dated April 29, 1902. Application filed December 18, 1900 Serial No. 40,304. (No model.)

of forming hoops, release them after formation from thesupport or former, and to have adjustable features in the latter for adapting the machine to different sizes of hoops, as

well as detail appurtenances to render the re sult sought positively successful and reliable.

With this and other objects and advantages in view the invention consists in the construction andarrangement of the several parts, which will be more fully hereinafter described and claimed and subject to changes inthe form, size, proportions, and minor details within the purview of the invention.

Inthedrawings, Figure 1 is an enlarged side elevation of the machine, partially broken away. Fig. 2 is afront elevation of a portion of the hoop former and support and a part of the operating devices. Fig. 3 is a front ele-. vation of the hoop former and support. Fig. 4 is a horizontal section on the line 6 6, Fig. 3. Fig. 5'is an enlarged detail sectional elevation of a portion of the machine. Fig. 6 is a' detail sectional perspective View of the hoop pressure and removing or expelling devices; Fig. 7is a detail perspective View of the hoopend. clamp carried by the hoop former and support. Fig. 8 is a detail perspective view of a portion of the support. I Similar numerals of reference are employed to indicate corresponding parts in the several views.

The numeral 1 designates a tubular or hol-j low base of suitable dimensions to support the entire machine,and rising therefrom is a, tubular standard 2, having projecting portions at regular intervals for the attachment and application of different mechanisms, which will be hereinafter described.

On the front portion of the standard, at a outer screw-threaded terminal.

of the slide 41 set-screws 43 are mounted, and

between the inner opposing portions of said sides of the slide and the side edges of the guide pressure-strips 44 are interposed, and r with which the inner ends of said screws contact to extend the frictional bind between the guide and the slide over a greater surface with a more positive result and without wearing the guide to any appreciable extent. From the center of the outer side of the slide a stub-shaft 45 horizontally extends and has an On this stubshaft a circular work-support or anvil46 is rotatably mounted and comprises adjustable sections 47 and 48, which are substantially semicircular, the section 47 being slightly larger than the section 48 and carrying a hub 49, which is fitted on the said stub-shaft. Each section has a back web 50 and a forwardly-projecting peripheral flange 51, the flange of the section 48 being of equal dimension throughout itslength and theouter surface smooth and unbroken. The section 47 has a portion of its flange formed with exterior peripherally-extending corrugations 52, having a single central separating-rib 53, the said structure providing means for clenching the staple-legs over the elongatedjoint of the hoop whichis applied to the said corrugated portion of the work-support. Under this corrugated portion of the flange of the section 47, whichmay be termed the anvil proper, a reinforce strip 54 is secured to strengthen the same and resist breakage of the said portion of I the flange by the pound or blow of the stapling devices thereon in setting a staple. At the right termination of the said anvil proper a slot 55 is formed rearward to the back web 50 and has itsleft ter-.

minal wall in the form of a downward and outward curved bevel 56-to 'movablyreceive the flanged head 5'7 of a clamp 58, provided with an inwardly-extending radial arm 59, which has a pivot bolt 60 passing therestapling operation.

through near the flange. The flanged head 57 has a laterally-projecting jaw 61 on the side thereof adjacent to the beveled end wall of the slot 55, the said jaw having an under upwardly-beveled side 62 toapproximately conform to the bevel 56 of the slot 55, the head 57 being of less length than the slot, so that the under overlapped terminal of the hoop band or stock can be inserted between said jaw 61 and the bevel 56 and clamped by the jaw to prevent movement or slipping during the stapling or fastening operation, also during winding of the hoop on the support. The inner end of the arm 59 is provided with an outwardly-projecting stud 63, which loosely engages a bifurcated extension 64 of the eye or sleeve 65 of the handle 66, the said eye or sleeve 65 being fitted on the stubshaft 45 to have free movement around the same, the said movement of the eye or sleeve being limited by the movement'of the arm 59 of the clamp 58. The movement of the arm 59 is limited by an outwardly-projecting stop 67 on the web of the upper section of the work-support when the jaw 61 is opened to insert the terminal of the hoop band or stock, and to obtain this movement of the jaw and arm forming a part thereof the handle 66 is swung to the right, and after the band or stock terminal has been properly disposed between the bevel 56 of the slot 55 and the jaw 61 a movement of the handle 66 to the left will cause the jaw to firmly bind on the terminal for purposes before set forth.

It Will be observed that the section 47, and particularly the anvil portion thereof, will always present a true are of a circle, and hoops of different diameters can be stapled on the same support without affecting their circular continuity..

To provide for holding hoops of different diameters, the section 48 is adjustable in relation to the section 47, the latter having a pair of slotted slide-plates 68 rigidly secured thereto, the slots of said plates being engaged by screw-bolts 69, which enter the web of the section 48. The plates 68 are on opposite sides of the center of the support, and the section 48 will thus be held in stable relation to the section 47 when adjusted, and though the movement of the section 48 away from the section 47 will change the circular contour of the work-support when in normal condition to an oval or elliptical contour the said section 48 will bear against some portion of the hoop thereon with sufficient firmness to prevent the hoop from slipping during the Both sections have rear peripheral grooves 70 opening out therefrom to reduce the radial extentof the said sections, for a purpose which will be presently explained. To adjust the work-support in a vertical direction and bring it closer to or lower it from the stapling mechanism above, a vertical screw 71 is secured to the center of the lower portion of the slide 41 and also passes through a vertical screw-threaded opening in a forwardly-extending projection 72 on the standard below the plane of the lower end of said slide. WVhen the slide is adjusted, it moves evenly on the guide 38, and it will be understood that before said adjustment is made the set-screws 43 will be loosened sufficiently and again tightened after the required degree of adjustment has been obtained. By the construction set forth the entire worksupport may be moved without in the least changing the relation of the sections thereof, and hoop bands or stock of different thicknesses can thus be compensated for.

On the left side of and extending longitudinally from the front to the rear of the machine is a supplemental casing 73, having an apertured ear or lug 74 on the left side of the front end, and therein the shank 75 of a guard 76 is adjustably mounted. The shank 75 is held by a set-screw 77, and the guard depends in a plane at right angles to the shank and has its lower edge extending into the plane of the rear peripheral grooves 70 of the sections of the work-support without touching the lower wall thereof, but depending below the plane of the front peripheral portions of the sections of the work-support to perform the function of preventing the hoop band or stock when applied from being pushed rearwardly too far or from slipping rearwardly during thestapling operation. In the casing 73 a slidable bar 78 is mounted and has a rear stem 79, movable through the rear end of the casing, the stem being surrounded by a coiled spring 80, exterior of the casing and operating to retract the bar to normal position[ The bar is also formed with a longitudinal slot 81, having a bearing-rod 82 extending transversely across the same, with a roller 83 thereon. Extending upwardly and movable through openings in the bottom and top of the casing 73 and also through the-slot 8l of the bar 78 is the upper flattened cam-head 84 of a vertically-reciprocable operating-rod 85, located to one side of the standard and passed downwardly through the base and movably attached to the rear end of a second treadle 86, fulcrumed on said base. The cam-head 84 includes an upwardly-projecting reduced extremity 87, movable through the upper opening in the casing 73 and provided with a stoppin 88 to limit the upward movement of the entire head and the rod 85, the said camhead also having a downwardly and forwardly inclined shoulder 89, that bears against the roller 83. The rod moves through a guide 90 on the standard, and surrounding the said rod between the under side of the guide and a set collar 91 on the same is a coiled spring 92, a washer being also placed on the rod close to the guide to serve as a bearing resistance for one terminal of the spring. This spring 92 is compressed when the rod 85 is forced upwardly by a depression of the treadle 86, and when said treadle is released the spring automatically acts to return the rod to normal position. WVhen the cam-head 84 is forced upwardly,the shoulder 89 thereof, in view of itsconstrnction, forces the bar 78 forwardly in the casing in a horizontal plane,

andas said bar is loose in the casing itisalso vertically elevated or tilted at its front extre mpressure-roller, which extends over and bears engaging surface of the latter.

.in a proper direction. tions of applying the work, stapling the joint upon the work on the support therefor to hold said Work down, and especially the loose upper terminal of the hoop-joint, so that the staple may be accurately driven thereinto or over the same. Extending from the right side of the end of the bar 78, that projects in advance of the casing 73, is a displacing-shoe for pushing the hoop when fastened from the work-support a sufficient distance to permit it to be graspedby the operator and completely detached. The under side of the said forwardly-projecting end of the bar 78 and the under side of the shoe are concaved in the regular arc of a circle and are normally depressed in the rear groove of the worksupport, so as not to interfere with the hoop- In the front edge of the shoe 95, close to its point of emanation from the forwardly-projecting end of the bar 78, a slot 96 is formed to give a clearance to the rear leg of the staple-forming plate 11, and as the bar is first raised by the upward movement of the cam-head 84 the pressure of the roller 94: is relieved from the work, and the lower side of the shoe is raised high enough to clear the peripheral bearing surface for the work, and the immediately following or forward projection or movement of the said bar will cause the shoe to strike the rear edge of the completed hoop and push eration is carried on the jaw 61 of the clamp will be released from clamping engagement with the inner terminal of the joint of the hoop by swinging or operating the handle 66 These several operaof the same, and finally releasing the completed Work can be rapidly carried on and provide for an expeditious construction of hoops for different purposes.

Having thus described the invention, What is claimed as new is 1. In a hand-operated hoop-forming machine, a rotatable work-support having a hoopsupporting rim, a clamp forming part of the rim and pivotally mounted on said support near the periphery thereof, said clamp having an inwardly-extending arm provided with a stud, an operating-handle having abifurcated extension for engaging with said stud, whereby on the initial movement of the handle in one direction the clamp will be caused to engage with the end portion of the hoop andbind the same against the work-support, and the continued movement of the handle in the same direction will be impartedthrough the clamping member and the hoop to effect 3. In ahoop-formingmachine, the combination of a rotatable Work-support, a horizontally-disposed slidable bar provided with a retracting-spring and also having avertical movement, the said bar carrying a roller at its front extremity which extends over the support, and means for operating said bar to elevate it and impel it forwardly overthe support.

4. In a hoop-forming machine, the combination of a rotatable work-support, and a vertically-movable pressure-roller over the worksupport and slidable in a horizontal plane.

5. In a hoop forming and stapling machine, the combination of a rotatable work-holder having a rear groove and ashoe normally located in said groove and shiftable over a portion of the support for detaching the completed hoop. I

6. In a hoop forming and stapling machine, the combination of a work-support, a horizontally-slidable and vertically-movable device carrying a shoe for detaching the work from the support, and means for operating said device.

7. In a hoop forming and stapling machine, the combination of a Work-support capable of being rotated, a vertically-movable longitudinally-slidable device carrying a pressureroller and a detaching-shoe at its front extremity for respectively holding down the work-and detaching the same when completed, and means for operating said device.

8. In a hoop forming and stapling machine, the combination of a work-support, a vertically movable and longitudinally slidable bar carrying a pressure-rollerand a shoe adjacent thereto and having alongitudinal slot therein with a roller extending transversely of the same, and a vertically-reciprocable operating-rod having an upper cam-headwith' a forwardly and downwardly inclined shoulder engaging said roller.

9. In a hoop-formin g machine, the combination of a rotatable Work-support having rear grooves, and an upwardly-proj ecting guard ati the rear portion of the support havinga front I g ll fiat face and normally held in immovable p0.- In testimony that I claim the foregoing as sition in relation -to the support, the said my own I have hereto affixed my signature in guard having an integral shank atone end in the presence of two witnesses.

a, plane at right angles thereto and which is NORMAN E. BROWN.

adjustable in a part of the machine back of Witnesses:

the support, the lower portion of the-guard CHAS. W. STRATTON,

extending into rear grooves of the support. N. A. HAMILTON. 

